MICROCHIP MIC5205YM5 150mA Low-Noise LDO Voltage Regulator, Adjustable

The MICROCHIP MIC5205YM5 TR is a high-performance, 150mA low-noise LDO (Low Dropout) voltage regulator, specifically engineered for precision and efficiency in battery-powered electronics. Featuring an ultra-low dropout voltage of just 165mV at full load, it maximises usable battery life by regulating down to very low input-to-output differentials. Its exceptionally low ground current of 600µA at 100mA output and near-zero current draw in shutdown mode make it ideal for power-sensitive portable applications where every milliampere counts.

This regulator delivers outstanding power integrity with better than 1% initial output accuracy, extremely tight load and line regulation, and a very low temperature coefficient for stable performance across environments. A dedicated reference bypass pin allows designers to further enhance its already excellent low-noise performance, crucial for sensitive communication and audio circuits.

Key Features & Protections

• Ultra-Low Noise Output: Ensures clean power for noise-sensitive components.
• High Accuracy: Better than 1% initial accuracy guarantees reliable voltage reference.
• Advanced Protection: Integrated reverse-battery protection, current limiting, and over-temperature shutdown safeguard both the regulator and the connected circuitry.
• Logic-Controlled Enable: A CMOS/TTL-compatible enable/shutdown pin allows for digital power management, reducing system-wide power consumption to nearly zero when inactive.

Encased in a compact SOT-23-5 surface-mount package, it is designed for space-constrained PCB layouts. With an operational temperature range from -40°C to 125°C, it is robust enough for industrial, automotive, and consumer applications demanding reliability under varying conditions.